Smart vending machine



FIG. 1 is a front perspective view of a smart vending machine shown in an environment of use;

FIG. 2 shows a front view thereof;

FIG. 3 shows a rear view thereof;

FIG. 4 shows a left-side view thereof;

FIG. 5 shows a right-side view thereof;

FIG. 6 shows a top view thereof; and,

FIG. 7 shows a bottom view thereof.

All broken lines show environment and form no part of the claimed design. 

CLAIM The ornamental design for a smart vending machine, as shown and described. 